Hi @AL0PEX97 and welcome to the community! You know I am a Singleplayer myself, although on playstation 5, and this sounds very similar to an issue I am having at the moment, where basically large swathes of the map are utterly uninhabited! I might also summon this to my friend @Barnes attention and see if there are some flags going up in his mind too. But I am now wondering if this could be a Singleplayer mode bug??
AL0PEX97 here is a link to my thread if you would like to check it out and draw some comparisons.